.page-contact {
  --cc-pad: clamp(18px, 2.6vw, 30px);
  --cc-gap: clamp(24px, 4vw, 48px);
}

.page-contact img {
  display: block;
  max-width: 100%;
  height: auto;
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  overflow: hidden;
  background: var(--night);
  border-bottom: 1px solid var(--line);
  padding-block: clamp(22px, 4vw, 44px) clamp(30px, 5.5vw, 60px);
}

.page-contact .contact-hero::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 2px;
  background: linear-gradient(90deg, transparent 0%, rgba(198, 255, 61, 0.5) 28%, rgba(79, 216, 198, 0.35) 72%, transparent 100%);
  pointer-events: none;
}

.page-contact .contact-hero__glow {
  position: absolute;
  top: -34%;
  right: -12%;
  width: min(640px, 72vw);
  aspect-ratio: 1 / 1;
  border-radius: 50%;
  background: radial-gradient(circle at 50% 50%, rgba(198, 255, 61, 0.16) 0%, rgba(79, 216, 198, 0.06) 46%, transparent 72%);
  pointer-events: none;
}

.page-contact .contact-hero > .shell {
  position: relative;
  z-index: 1;
}

.page-contact .contact-hero h1 {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(32px, 6.4vw, 66px);
  line-height: 1.04;
  letter-spacing: -0.02em;
  color: var(--ink);
  max-width: 19ch;
}

.page-contact .contact-lede {
  margin: clamp(16px, 2.4vw, 24px) 0 0;
  max-width: 58ch;
  font-size: clamp(16px, 1.6vw, 19px);
  line-height: 1.75;
  color: var(--ink);
  opacity: 0.88;
}

.page-contact .contact-hero__media {
  margin-top: clamp(28px, 4.4vw, 48px);
}

/* ---------- 三栏联络方式 ---------- */
.page-contact .contact-channels {
  padding-top: clamp(32px, 5vw, 64px);
}

.page-contact .contact-cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  margin-top: clamp(24px, 4vw, 40px);
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}

.page-contact .contact-card {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: var(--cc-pad);
  background: var(--panel);
}

.page-contact .contact-card__title {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.14em;
  color: var(--muted);
  text-transform: uppercase;
}

.page-contact .contact-card__subtitle {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.14em;
  color: var(--muted);
}

.page-contact .contact-card__value {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(15px, 1.6vw, 19px);
  line-height: 1.5;
  letter-spacing: -0.01em;
  color: var(--ink);
  word-break: break-word;
}

.page-contact .contact-card__value--sm {
  font-size: clamp(14px, 1.4vw, 16px);
  color: var(--ink);
}

.page-contact .contact-card__value--big {
  font-size: clamp(26px, 4vw, 42px);
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--lime);
  word-break: keep-all;
}

.page-contact .contact-card__hint {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--muted);
}

.page-contact .contact-card__alt {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: auto;
  padding-top: 16px;
  border-top: 1px solid var(--line);
}

.page-contact .contact-copy {
  align-self: flex-start;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  padding: 7px 16px;
  min-height: 36px;
}

/* ---------- 反馈要点 ---------- */
.page-contact .contact-brief__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--cc-gap);
  align-items: start;
}

.page-contact .contact-brief__body h2 {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(26px, 3.6vw, 40px);
  line-height: 1.12;
  letter-spacing: -0.02em;
  color: var(--ink);
}

.page-contact .contact-brief__body .lead {
  margin: 14px 0 0;
}

.page-contact .contact-checklist {
  list-style: none;
  counter-reset: cc-item;
  margin: clamp(20px, 3vw, 30px) 0 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.page-contact .contact-checklist li {
  counter-increment: cc-item;
  position: relative;
  padding: 18px 0 18px 52px;
  border-bottom: 1px solid var(--line);
}

.page-contact .contact-checklist li::before {
  content: "0" counter(cc-item);
  position: absolute;
  left: 0;
  top: 20px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--lime);
}

.page-contact .contact-checklist__t {
  margin: 0 0 6px;
  font-size: 16px;
  font-weight: 600;
  color: var(--ink);
}

.page-contact .contact-checklist p {
  margin: 0;
  font-size: 15px;
  line-height: 1.72;
  color: var(--muted);
}

/* ---------- 常见问题筛选 ---------- */
.page-contact .contact-ask__bar {
  margin-top: clamp(16px, 3vw, 26px);
}

.page-contact .contact-ask__list {
  list-style: none;
  margin: clamp(20px, 3vw, 30px) 0 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}

.page-contact .contact-ask__list > li {
  padding: clamp(16px, 2.4vw, 24px) var(--cc-pad);
  background: var(--panel);
}

.page-contact .contact-ask__q {
  margin: 0 0 8px;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.6;
  color: var(--ink);
}

.page-contact .contact-ask__q::before {
  content: "›";
  display: inline-block;
  margin-right: 10px;
  color: var(--teal);
  font-weight: 700;
}

.page-contact .contact-ask__a {
  margin: 0;
  padding-left: 20px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--muted);
}

/* ---------- 值班说明 ---------- */
.page-contact .contact-duty__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--cc-gap);
  align-items: start;
}

.page-contact .contact-duty__grid h2 {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(26px, 3.6vw, 40px);
  line-height: 1.12;
  letter-spacing: -0.02em;
  color: var(--ink);
}

.page-contact .contact-duty__grid p {
  margin: 14px 0 0;
  max-width: 54ch;
  line-height: 1.75;
  color: var(--muted);
}

.page-contact .contact-duty__card {
  display: grid;
  gap: 1px;
  padding: 0;
  overflow: hidden;
}

.page-contact .contact-duty__row {
  padding: clamp(16px, 2.4vw, 24px) var(--cc-pad);
  background: var(--raise);
}

.page-contact .contact-duty__row + .contact-duty__row {
  border-top: 1px solid var(--line);
}

.page-contact .contact-duty__num {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(26px, 3.6vw, 42px);
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--ink);
}

.page-contact .contact-duty__num--sm {
  font-size: clamp(18px, 2.2vw, 24px);
  color: var(--teal);
  letter-spacing: 0.02em;
}

.page-contact .contact-duty__k {
  margin: 8px 0 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--muted);
}

/* ---------- 渠道边界 ---------- */
.page-contact .contact-limit__box {
  padding: clamp(22px, 3.4vw, 42px);
  border: 1px solid rgba(255, 75, 36, 0.55);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(255, 75, 36, 0.07) 0%, rgba(255, 75, 36, 0) 62%);
}

.page-contact .contact-limit__box h2 {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(24px, 3.2vw, 36px);
  line-height: 1.14;
  letter-spacing: -0.02em;
  color: var(--ink);
}

.page-contact .contact-limit__list {
  list-style: none;
  margin: clamp(18px, 2.6vw, 26px) 0 0;
  padding: 0;
  display: grid;
  gap: 14px;
  max-width: 76ch;
}

.page-contact .contact-limit__list li {
  position: relative;
  padding-left: 22px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--muted);
}

.page-contact .contact-limit__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.68em;
  width: 10px;
  height: 1px;
  background: var(--orange);
}

/* ---------- 运营与备案 ---------- */
.page-contact .contact-ledger__list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  margin: clamp(20px, 3vw, 30px) 0 0;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}

.page-contact .contact-ledger__item {
  padding: clamp(16px, 2.4vw, 24px) var(--cc-pad);
  background: var(--panel);
}

.page-contact .contact-ledger__item dt {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--muted);
  text-transform: uppercase;
}

.page-contact .contact-ledger__item dd {
  margin: 10px 0 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--ink);
}

/* ---------- 相关入口 ---------- */
.page-contact .contact-more__list {
  list-style: none;
  margin: clamp(20px, 3vw, 32px) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}

.page-contact .contact-more__list li {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 20px var(--cc-pad);
  background: var(--panel);
}

.page-contact .contact-more__list a {
  align-self: flex-start;
  font-size: 17px;
  font-weight: 600;
  color: var(--ink);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  transition: color 160ms ease, border-color 160ms ease;
}

.page-contact .contact-more__list a:hover,
.page-contact .contact-more__list a:focus-visible {
  color: var(--lime);
  border-color: var(--lime);
}

.page-contact .contact-more__list span {
  font-size: 14px;
  line-height: 1.72;
  color: var(--muted);
}

/* ---------- 响应式 ---------- */
@media (min-width: 820px) {
  .page-contact .contact-cards {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-contact .contact-ledger__list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-contact .contact-brief__grid {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  }

  .page-contact .contact-duty__grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  }

  .page-contact .contact-more__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1080px) {
  .page-contact .contact-more__list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 480px) {
  .page-contact .contact-card__value--big {
    font-size: 30px;
  }

  .page-contact .contact-ask__a {
    padding-left: 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .contact-more__list a {
    transition: none;
  }
}